121700-26-3 7H-Pyrano[2,3-g]-1,4-benzodioxin-7-one,2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, trans- (9CI) CAS 121700-26-3

Purity 97%+In StockPharmaceutical Standards
CAS No.121700-26-3
Molecular FormulaC20H18O8
Molecular Weight386.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

121700-26-3 7H-Pyrano[2,3-g]-1,4-benzodioxin-7-one,2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, trans- (9CI) CAS 121700-26-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 386.35 g/mol gives 121700-26-3 7H-Pyrano[2,3-g]-1,4-benzodioxin-7-one,2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, trans- (9CI) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 121700-26-3 7H-Pyrano[2,3-g]-1,4-benzodioxin-7-one,2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, trans- (9CI) (CAS 121700-26-3), a certified reference material (molecular formula C20H18O8, MW 386.35 g/mol) for analytical method development and quality control.

The molecular framework of 121700-26-3 7H-Pyrano[2,3-g]-1,4-benzodioxin-7-one,2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, trans- (9CI) (C20H18O8) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 121700-26-3 7H-Pyrano[2,3-g]-1,4-benzodioxin-7-one,2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, trans- (9CI) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC20H18O8
Molecular Weight386.35 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991

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